Installation guide

Criteria Requirements

Red Hat Enterprise Linux 5 Server (x86 and

x86_64)

Required Filesystem ext3

Table 2.3. System Versions

2.2.2. Red Hat Enterprise Linux System Configuration

After verifying the system's kernel and glibc configuration and installing any required modules

and patches, fine-tune the Red Hat Enterprise Linux system to work with Directory Server. For

the best performance, configure the host server before configuring the Directory Server instance

by running the setup-ds-admin.pl script.

• Section 2.2.2.1, “Perl Prerequisites”

• Section 2.2.2.2, “File Descriptors”

• Section 2.2.2.3, “DNS Requirements”

2.2.2.1. Perl Prerequisites

For Red Hat Enterprise Linux systems, use the Perl version that is installed with the operating

system in /usr/bin/perl for both 32-bit and 64-bit versions of Red Hat Directory Server.

2.2.2.2. File Descriptors

Editing the number of file descriptors on the Linux system can help Directory Server access files

more efficiently. Editing the maximum number of file descriptors the kernel can allocate can also

improve file access speeds.

1. First, check the current limit for file descriptors:

cat /proc/sys/fs/file-max

2. If the setting is lower than 64000, edit the /etc/sysctl.conf file, and reset the fs.file-max

parameter:

fs.file-max = 64000

Red Hat Enterprise Linux 4 and 5